Table 1.

Pearson’s correlation of different techniques at 20% missing data with the gold standard under MCAR and MNAR assumptions. Degrees of freedom = 12220.

	missingness	Correlation (r)	t-statistics	confident interval	p-value
Soft Impute	Random	0.92	254.2	0.914 – 0.919	< 0.0001
	Not random	0.66	98.4	0.650 – 0.670	< 0.0001
Mean	Random	0.87	199.1	0.870 – 0.878	< 0.0001
	Not random	0.88	205.3	0.876 – 0.884	< 0.0001
K-NN	Random	0.92	255.1	0.914 – 0.920	< 0.0001
	Not random	0.92	256.4	0.915 – 0.920	< 0.0001
RF	Random	0.93	275.1	0.925 – 0.930	< 0.0001
	Not random	0.93	275.4	0.925 – 0.930	< 0.0001